Coin-operated electric iron



Oct. 23, 1951 HI s. KALJFMAN 2,572,350

COIN OPERATED ELECTRIC ION Filed March 11, 1946 I 2 SHEETS-SHEET l INVENTOR. HARRYS. KAUFMAN ATTURNEY 1951 H. s. KAUFMAN COIN OPERATED ELECTRIC IRON 2 SHEETS-SHEET 2 Filed March 11, 1946 INVENTOR. HARRY 5 KAUFMAN ATTORNEY Patented Oct. 23, 1951 E D STA-T ES OFF ICE $572,350 colN-eonnanzrnn ELECTRIC IRON Harry, S. .Kauf man, San .Diego,, Calif; Application March-1 1 1946', -Serial No. 653,611 I acl n (or. 194 434 My invention relates to, aacoinzoperated-electriq iron; more particularly an... improvement. oven-my. patent application, Serial Number 622,189; .fi-letl' October 13; 19515, now abandoned, andsthezobjects of my. inventionare:

First',.,to.=pro vide acoin operated electricriron. of; this; class-in; which the; coin operated: control iszreadily; removablyconnected. to v the. iron. with which itciszused;

Second, .to provide-a .coinioperated, electric iron ofthisclass in which the coin' operated control means may be plugged; in connection with, the conventional. plug. receiving prongs. of convene tional electricirons:.

Third; to. provide-1a; coin. operated: electric; iron of this; classwhiclr istvery compact andunohtrusive.

Fourth, to provide: a1 coinoperatedselectricriron of this class in whichla pairzofs rotating. coin receiving. plates are; directly: connected: with the. timeclockshaft providing avery simple-anticompact structurewhich doesmotzhamper the operas tions; of the person ironing clothes. or the like.- therewith,

Fifth, to provide: arcoin operated electric iron:

of this class in which, a. guard plate covers: the:

coin receiving; plates when in. operatiompreventeing the;coin re.ceivingiplates from being-tampered with, and;

Sixth, to provide acoin operated electricironof. this class which is very simple and economical of construction, efficient in operation and: which. will not readily; deteriorate or get out, of;' order.

With these and other objectsin viewias willj appear hereinafter, my: invention consistssof; centain. novel features of construction, combination: and arrangement of partsi-andportions aswill be:v

hereinafter described in detail and particularly. set forthnin the-appended claims, referencebeing. had to thev accompanying drawings: and. to; the;

characters of reference thereon formingapartgof this application. in which Figural is, a topor planview of my-coin operated electric iron; Figure 2 is a vertical sec:-

tional view taken from the line. z-2-. of Fig; 1

showing partsfandv portions inv elevation. to. facilitat'e therillustration; Figure 3 isafragmenetarysectiona]; view taken from the line 3 3 of Fig; 2; Figure 4' is a fragmentary sectionaLview taken from the line. @541. of Fig. 2; Figures isza. fragmentary'sectional View taken from; the line 55 ofFig. 2 Figure 6.is;.a fragmentary sectionalg view taken from the line 66 of Fig. 2 Fig ure 7 is'a' fragmentary sectional view taken frpm zthe. line T-l' ofFig, 2; and Figure Sisadiagram matic view. ofgthe wiring used in connection with;

my coinperated electric iron;

Similar characters; of: reference refer tqisimilan part and portionsthroughout the -several views trol knob l-l; lock 12, springj I3; aridhee fqci plate l;4 constitute the principal, parts and por tions of my coin operated electric iron.

The casing; I isprovidedzwith a prongiengag ingplug-portion la, removablyqpositioned in the;

plug: frame I'b, of. the, convention l e ectric: rom 2 lc-all as shown best in-..Fie., 1 of; theidraw ngs'a casing portion id; in which. the; time:v c1oc.k;.3;1s\,. naii positioned, The-time clock: 3;.is- -a conv-e;

t v e, avi an. s apement mechanism. and a. main springshaft, designateduthegtimez clock shaft 1. It' wi-llbe; noted thattheicasing: 1,. at. its-control casing; portion; Id, is enclosed bn shown best in Figs: 3rand; '7- of the draw-mafia This} tumbler look I 2; is provided with. a. locking;

lug l 2ai as shownabestin Fig. 20f the;drawings;. adapted to be positioned through the}; opening; Na; in: the; lock plate M which: is securedz the: plug; receiving frame portion; I11 of the-iron le The .-opening I ia accommodates; theinsertiomofy the locking lug Ila-oi the tumbler lock l2 which... whenrotated engages; the normally rear-side. ofvtheflockplatez I4, securing the cover Z imconenectionwiththe casing; I and; maintaining: the; plug portion In; of the: casing l in the plug: re: ceiving frame lb of the iron. Ic. contacts; 4.and.5; .as;shown in Fig. 7 chime-drawings, are secured in connection .with;.the: time: clock by, the bracket. and these contact rfi and 5 are electrically secured. to conductors; 4125. and 5a, as? shown i the: diagrammat c viewm' r the wiring in Fig. 8 0i the; drawingsn The: 61803:; trical contact. 4 is; engageable, with .thecamzmeme her 6. secured; on the guard plate l0, .rotatably; mounted-about the zaxis of the shaft li, ns showni.

in Fig. 2 of thedrawings the coinrreceiving late;

8 is positioned intermediate theicoin receiving...

platev 9 and, the guard plate; 1,0; The; CQinirQCej-Y'S ing. plate 8 is provided with acoinreceiying recess -v receiving, plate; 9. Itwillbenoted; thatftha shaft The" electrical I i provided with flats "Ia thereon on which the coin receiving plate 8 is fixed. The coin receiving plate 9 is rotatably mounted on the shaft 1. The guard plate l0, together with the cam 6, is freely rotatably mounted on the shaft 1 as shown in Fig. 6 of the drawing. The coin receiving plate 9 is provided with an integral extending shaft portion 92), having a hub portion 90 engaged by the spring 13. This spring [9 is secured at its opposite end 13a to the inner side of the casing cover 2 as shown best in Fig. '3 of the drawings. Tension of the spring 13 tends to hold the coin receiving plate 9 in approximately the position as shown in Fig. 4 of the drawings, wherein, the recess portion 9a is open at the upper peripheral edge of said coin receiving plate 9. This recess 9a cooperates with the recess 8a in the coin receiving plate 8 for receiving coins. The depth of the recess 9a is substantially one-half of the thickness of the coin to be received thereby. The recess 8a, in the coin receiving plate 8, is deep enough to receive the other half of the coin, positioned at one side in the coin receiving recess 9a of the coin receiving plate 9. The coin recess 8a, in the coin receiving plate 8, is substantially U- shaped and communicates with the periphery thereof while the recess 9a, in the coin receiving plate 9, is defined by a semi U-shaped portion having a cordially disposed, gradually curved edge communicating with the closed side of said semi U-shaped recess portion. The coin receiving plate 8 is provided with a laterally extending tab portion 81) engageable with the radially extending step portions Ma and lilb of the guard plate 19 when rotated substantially 180. The guard plate I is provided with a laterally extending arcuate guard portion I00 which extends over the upper edges of the coin receiving plate 8 and 9 as shown best in Fig. 2 of the drawings. Secured to one side of this guard plate [9 is the cam 6 which engages the contact 4 which is provided with a resilient arm 4b, similar to the resilient arm of the contact 5. The contacts 4 and 5 are normally open contacts and are held in closed position as shown in Fig. '7 by the cam 5. The control knob H is secured on the shaft portion 96in connection with the coin receiving plate 9 and is used in the manual setting of my coin operated electric iron. It will be here noted that the casing cover 2 is provided with a slotted portion 2a in its normally upper side, ararnged to receive coins placed in the recess portion 8a and 9a of the coin receiving plates 8 and 9. This casing cover 2 is also provided with a channel portion 21) directly below the slotted portion 2a, arranged to convey coins downwardly into the coin receiving recess portion Ie as shown best in Fig. 2 of the drawings.

The operation of my coin operated electric iron 7 is substantially as follows:

When the coin receiving plates 8 and 9 are in the positions as shown in Figs. 4 and 5 of the drawings the escapement mechanism in the time clock 3 permits the shaft 1 to rotate slowly in the direction as indicated by the arrow A in Fig. 5 of the drawings, carrying with it the coin receiving plate 8. When the recess portion 8a, of the coin receiving plate 8, reaches the slotted portion 2a, of the casing cover 2, the tab portion 8b, of the coin receiving plate 8, engages the ledge portion 19b, of the guard plates and forces the same in the direction as indicated by the arrow B in Fig. 6 of the drawings. When forced in the direction as indicated by the arrow B in Fig. 6 of the drawings, the cam 6 in connection 4 with the guard plates Ill passes the contact member 4 at its apex portion 6a, whereupon, the resilient thrust of the contacts 4 and 5 and the angular side 6b of the cam 6 rotates the arcuate guard portion lllc away from the opening 2a in the casing cover 2. It will be noted that during rotation of the shaft 1 together with the coin receiving plate 8 and movement of the guard plate ID, that the coin receiving plate 9 remains in the position as shown in Fig. 4 of the drawings maintained by the spring [3 due to the freely revoluble relation of the shaft 1 in the coin receiving plate 9. When the recess portion 8a, of the coin receiving plate 8, indexes with the coin receiving opening 9a, of the coin receiving plate 9, directly below the opening 2a, in the casing cover 2, a coin may be inserted intermediate the coin receiving plates 8 and 9 in the recess portions 8a and 9a thereof. It will be noted that a coin inserted in the recesses 8a and 9a extends half of its thickness into the recess 8a. and the other half of its thickness into the recess 9a in the coin receiving plates 8 and 9 respectively. When the coin is in place in the recesses 8a and 9a the control knob H may be turned in a clockwise direction carrying with it the coin receiving plate 9 and the coin receiving plate 8 interlocked to the coin receiving plate 9 by the coin in the recess portions 811 and 9a. The control knob II is turned in a clockwise direction, as shown in Fig. 5 of the drawings, until the recess portion 8a assumes the position, as shown in Fig. 5 of the drawings, above the coin receiving channel 21). of the casing cover 2. As the coin receiving plate 8 is rotated in a clockwise direction the shaft I secured in connection therewith i turned therewith winding the spring motor in the time clock 3, whereupon, the escapement mechanism is started. It will be noted that the cordially disposed curved portion of the recess 9a, in the coin receiving plate 9, during return rotational move ment, ejects the coin in the recesses 8a and 9a downwardly into the coin receiving channel 2b of the casing cover 2. When the control knob H i released the spring l3 returns the coin receiving plate 9 to the position as shown in Fig. i of the drawings. Coins are conveyed in the recesses 9a and 9a, of the coin receiving plates 8 and 9, dropped through the channel 2b, in the casing cover 2, and are contained in the recess le, of the casing 1, until collected. It will be noted that when the coin receiving plate 8 is turned to the position, as shown in Fig. 5 of the drawings, the tab portion 81) of said coin receiving plate 8, engages the ledge portion 10a, of the guard plate In, and forces the same into the solid line position as shown in Fig. 5 of the drawings, wherein, the apex Ba, of the cam B, forces the contact 4 into engagement with the contact 5, closing the electrical circuit as shown in Fig. 8 of the drawings. These contacts 4 and 5 remain in closed position until the escapement mechanism in the time clock 3 permits the shaft 1 to rotate in the direction as indicated by the arrow A, in Fig. 5 of the drawings, until the recess 8a is again in the upper vertical position wherein the tab portion 8b again engages the ledge portion lUb, of the guard plate In, and this disengages the apex 6a, of the cam B, from the contacts 4 and 5 permitting the same to open, whereupon, another coin must be inserted to continue electrical operation of the electrical iron 10.

Time interval involved may be varied as desired the recess 8a from the position as shown in Fig. 5

of the drawings, to a position indexed with the slotted portion 2a, of the casing cover 2, within approximately thirty minutes. When it is desired to collect the coins accumulated in the recess Ie of the casing l, the tumbler lock I2 is opened in the conventional manner by the use of a key and the locking lug l2a is turned substantially 90 to index with the slotted portion Ma, in the lock plate I4, whereupon, the cover 2, together with the control knob l I, coin receiving plate 9 and the spring I3 may be removed from the casing I The coins may then be removed from the recess le and the cover 2 may be replaced and locked into position by means of the tumbler look l2. It will be noted that the lock plate Ill extends into a slotted portion If, in the casing I, and that the engagement of the lock 2 with the lock plate Hi prevents removal of the plug portion ta, of the casing I, from the plug receiving frame lb of the electric iron Ic. In the diagrammatic view of the wiring, in Fig. 8 of the drawings, the electrical conductors la and 5a, as shown in Fig. 7 of the drawings, are in circuit with one of the conventional electric iron plug prongs lg, electrically connected to the heating element lh connected at its opposite end to the plug prong l7 electrically connected to one wire lie of the cord lm all as shown best in Figure 1 and 8 of the drawings.

Though I have shown and described a particular construction, combination and arrangement of parts and portionsl do not wish to be limited to the particular construction, combination and arrangement but desire to include in the scope of my invention the construction, combination and arrangement substantially as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a coin controlled electric iron of the class described, the combination of a casing, a time clock mounted in said casing having an extended shaft, a guard plate freely rotatable on said shaft, a cam in connection with said guard plate, a pair of electrical contacts engageable with said cam, a first coin receiving plate fixed on said shaft and having a coin receiving recess therein, at one side thereof, equal to approximately onehalf the thickness of a coin to be inserted therein, a second coin receiving plate rotatably mounted relatively to said shaft and having a coin receiving recess in one side thereof adjacent said first receiving plate, said recess in said second coin receiving plate being of a depth substantially one-half the thickness of a coin to be inserted therein, said first mentioned coin receiving plate having a tab portion engageable with said guard plate, whereby rotation of said first coin receiving plate engages said tab portion with said guard plate causing said cam to close said contacts.

2. In a coin controlled electric iron of the class described, the combination of a casing, a time clock mounted in said casing having an extended shaft, a guard plate freely rotatable on said shaft, a cam in connection with said guard plate, a pair of electrical contacts engageable with said cam, a first coin receiving plate fixed on said shaft and having a coin receiving recess therein, at one side thereof, equal to approximately one-half the thickness of a coin to be inserted therein, a second coin receiving plate rotatably mounted relatively to said shaft and having a coin receiving recess in one side thereof adjacent said first receiving plate, said recess in said second coin receiving plate being of a depth substantially one-half the thickness of a coin to be inserted therein, said first mentioned coin receiving plate having a tab portion engageable with said guard plate, whereby rotation of said first coin receiving plate engages said tab portion with said guard plate causing said cam to close said contacts, said guard plate having a substantially arcuate guard portion extending over the periphery of said first and second coin receiving plates.

HARRY S. KAUFMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 670,864 Roney et al Mar. 26, 1901 1,794,067 Extrom et a1. Feb. 24, 1931 1,795,802 Shield Mar. 10, 1931 1,967,737 Boydston July 24, L934 

